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pierre.

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  1. For those that are already using the RS485 port for battery connection, has anyone tried the RS232/Wifi port? The protocol document does seem to mention it, also the solarman wifi data logger connects via this port.
  2. The inverter reports SoC based on voltage and is designed for Lead not Lithium. Doesn't matter much as it doesn't do anything with SoC. All settings work on voltage. You mention it's charging. I assume the light is just flashing now and then. What is your bulk/float charge voltage setting?
  3. Sorry for spamming this topic, but everyone here seems very knowledgable on the infinisolar V range. In South Africa we are not allowed to feed power into the grid, but you still want to use the grid feed function of this inverter to power your own loads so that you are not limited to 5kw. Is there a way to limit the feed to grid so that it only feeds enough for your own loads? On other inverters there is usually an external energy meter to tell the inverter to limit export power. Perhaps via USB commands?
  4. @Bloubul7 Instead of using a Raspberry PI zero to read from the inverter, are you now considering connecting a Raspberry PI 4 via a USB to RS485 converter like the ones below? I assume the PI 4 then also runs home assistant where you show metrics/charts. If this is not your current plan. Do you see any issues with going this route? https://www.robotics.org.za/W17286?search=usb to rs485 https://www.robotics.org.za/RS485-MINI?search=usb to rs485
  5. Hi @JacquesVDM, thank you for the clarification. I'm interested in developing something similar for my setup (pylontechs + axpert parallel) and I'm familiar with reading data from these devices. Once you have something you are willing and happy to share please feel free to do so
  6. I see there is a big price and size difference between this inverter: https://voltronicpower.com/en-US/Product/Detail/InfiniSolar-2KW-5KW And these "V" range inverters where the V2 is the high voltage MPPT: https://voltronicpower.com/en-US/Product/Detail/InfiniSolar-V-II-1.5KW-2KW-3KW-5KW https://voltronicpower.com/en-US/Product/Detail/InfiniSolar-V-1K-5K Does anyone know the difference between the two ranges?
  7. Hi @perg67, which USB to serial adapter are you using? I think normal serial is 12V while others are 3.3V: https://electronics.stackexchange.com/questions/274287/what-is-the-difference-between-rs-232-and-ttl-uart
  8. What information is inport for you to see across all sites? What price site is acceptable?
  9. Thank you for sharing your results. Although I can see the inverters is having a hard time handling that specific problem scenario, my problem is fixed because the output voltage remain stable. I've created my own software that I will probably make available for free. It runs an embedded grafana which is what you see in the screenshots. It runs on a Pi and in future I will probably have a closed beta if you are interested.
  10. @Blowdart18 This table from geyserwise is pretty good as a reference for how much difference there is between the months. Don't mind what the actual value is in this table, just calculate the percentage relative to the best summer month, then do the math to predict what you will get in that month based on what you currently get. https://www.geyserwise.com/wp-content/uploads/2016/03/0207_PV-system-installation-manual_web.2016March09.pdf
  11. @Jaco P Bloem I have 9x 340W in serie per inverter. My PV voltage generally goes between 310V and 390V. What do you have? Feedback in terms of the upgrade: I can confirm that my problem has 90% been solved at the cost of 5% less PV generation. As far as I can tell the inverter now tries to squeze out less power from the panels, but is much more stable. The PV voltage doesn't have sudden drops and my AC out doesn't drop below 220V, where it previously dropped to 190V. There is another forum topic where a user also reported less PV generation when upgrading from 71.70 to 71.80. I've upg
  12. Yes it's the 450V models. I upgraded them a few hours ago so I don't know how they perform yet. I'm hoping it solves this issue.
  13. I just upgraded my MKS II (yes the 450V MPPT) to 71.82. I wouldn't upgrade unless you have an issue. If you do have an issue, the supplier/installer should give you the latest firmware and provide support if something goes wrong. In my case my installer came to my house and did the upgrade with me. It's not that it's hard to do, but if something goes wrong it should be fixed as part of warranty. That is just my opinion and perhaps not industry tendency.
  14. I've flashed my 2x Axpert MKS II inverters with the latest firmware (71.82). I've attached the firmware to this post for interest sake. Whatever you do with it is at your own risk. I used this cable and it worked the first time on both. Note this cable goes from your computer to the serial cable that came with the inverter (see picture): https://www.takealot.com/ce-link-usb-2-0-to-rs232-db9-serial-male-a-2m-cable/PLID51855970 The inverters remained connected via parallel cable during upgrade. I turned one on and the other off, which sets the one turned on to master. I then flashe
  15. I haven't read through this entire forum topic, but note other users reported Axpert king solar PV production issues were fixed with firmware upgrade:
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